• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Process for the preparation of water-dispersible, air-drying alkyd binder, by reacting a drying oil, chetyrehatomnogo alcohol or its mixture with a trihydric alcohol, polyethylene glycol, monocarboxylic acid and phthalic acid and / or derivatives thereof under heating to obtain a resin with units containing polyethylene glycol 6,511 May.% And an acid 16.5 to 28.0 mg of KOH / g, characterized in that, in order to increase stability while maintaining the high physicomechanical properties of coatings based on alkyd resins, first 1633 wt.% The ethylene glycol molecular weight 1500-3000 is reacted with 10-17 wt.% formaldehyde condensation product and () -alkylphenol or a mixture of p-tert-butylphenol and bisphenol A with an average methylol functionality of 1.9 - 2.2 in the presence of 1-3 wt. % unsaturated monocarboxylic acid at i 120-140 ° C, followed by condensation of the obtained product, drying off oil with an iodine number of 125-210 mg g of four fechatoic alcohol or its mixture with triatomic and phthalic acid and / or its derivatives. to O) 00
    公开号:SU1268103A3
    申请号:SU782699401
    申请日:1978-12-11
    公开日:1986-10-30
    发明作者:Цюкерт Бертрам
    申请人:Вианова Кунстхарц Аг (Фирма)；
    IPC主号:
    专利说明:


    CH The invention relates to a process for the preparation of water-dispersible, air-drying capable bonding agents based on alkyd compounds modified by dried-on fatty oils and polyethylene glycol. . Emulsions made on their basis are distinguished by improved stability of the ability to dry and water resistance. The purpose of the invention is to increase the stability of water-dispersible alkyd binders during the storage of the high physicomechanical properties of a coating based on them. The invention is illustrated by the following examples. In the examples, condensation products of phenol with formaldehyde are used: PC-1 is a product of interaction with 1 mol of p-tertiary butylphenol and 2.1 mol of formaldehyde with a content of 1.9 mol of methylol groups per product molecule; -IIK-Z is a product of interaction with 1 mol of nonylphenol with 2.1 mol of formaldehyde with a content of 2 mol of methylol groups per product molecule; PC-3 is a product of the interaction of 3 mol of p-tert-butylphenol, 1 mol of bisphenol -Ai and 10 mol of formaldehyde with a content of 2.2 mol of methylol groups per product molecule. Example 1. 320 parts of polyethylene glycol (PEG) of average molecular weight 1500, 200 hours IIK-1 and 20 parts fatty acids of linseed oil are charged into the apparatus under an inert gas atmosphere for 80 minutes at 120 ° C, and distilled for 30 hours . water. Further 900 parts of wood oil are added and the temperature is raised to 200 ° C. The reaction is completed after 75 minutes. 282 parts of the obtained intermediate are mixed with 210 parts of p-tert-butylbenzoic acid, 190 parts of pentaerythritol, 76 parts of linseed oil with 0.4 parts of lead octoate (content metal 10%) - And 0.4 h, calcium octoate (metal content 4%) J conducts the re-sterication reaction for 90 min at 240 ° C. After the addition of 160 parts of phthalic anhydride and 40 parts of tetrahydrophthalic anhydride, the esterification reaction is carried out using the azeotropic method (xylene) until the acid number is 25 mg KOH / g. After the recirculating agent is distilled off, the esterification is completed with an acid number of 20 Ml KOH / G and an intrinsic viscosity index of 9 w / g. The alkyd resin is diluted with ethylene glycol monobutyl ether (BUGL) to a solids content of 90%. At 60 ° C and vigorous stirring, 30 parts of triztilamine and 1260 parts of deionized water are added over 1320 minutes. The resulting clear, structurally viscous emulsion has a solids content of about 40% and a pH of 8.5. Examples 2-3. In Example 1, alkyd resins and emulsions of these resins are prepared. The original components of the synthesis, their number in examples 2 and 3 are given in table. 1. An oil (from step 2) may be present in pre-stage 1 without changing the properties of the final product during esterification. However, attention should be paid to maintaining the concentration of the catalyst (the value in brackets). Example 4 A urethane alkyd resin capable of being emulsified with water was prepared as follows. 40 parts of PEG (average molecular weight 1500) are esterified and 25 parts of PC-2 in the presence of 85 parts of isomerized linseed oil, with fractional content of 40-45% fatty acids of linoleic oil and linolenic oil, with iodine number 170 -180, at 140 ° C, with 5 parts of linseed fatty acid added as a catalyst. After 60 minutes, the temperature is raised to 20 ° C and the charge is charged for 90 minutes at this temperature. After adding 70 parts of flaxed fatty acid, 90 parts of p-tert-butylbenzoic acid, 100 parts of pentaerythritol, 0.2 parts of octoate lead and 0.2 parts of calcium octoate, the transesterification reaction is carried out for 90 minutes at 240 ° WITH. Then, a preliminary product is obtained in the form of an alKhid resin by adding 40 parts of phthalic anhydride and 40 parts of tetrahydrophthalic acid anhydride according to the azeotropic method at 200 ° C, and the esterification is carried out until the acid number is 25 mg KOH / g. After distillation of the circulating medium in vacuum, the resin acquires the indicators: acid number 21.6 mg KOH / g and intrinsic viscosity index 6.6 ml / g. 95 parts alkyd resin mixed with 11h. methyl isobutylketbone at 80 until a homogeneous mixture is obtained and after the addition of 5 parts of toluene diisocyanate is heated to 90 ° C. After 60 mi, 0.2 h of dibutyl tin dilaurate is added and the temperature is maintained for another 5 h. The obtained resin has indicators: solids content of 90.6%, acid number 20 mg KOH / g, and intrinsic viscosity index 9.1 ml / g, emulsified after addition of 3.5 parts of triethylamine in 139 parts of water. The emulsion has a 40% solids content and a pH of 9.25, Example 5. Preparation of an alkyd resin modified with acrylic and capable of being emulsified with water. The initial product is obtained by esterification at 140 ° C (60 min) and condensation at 200 ° C (90 min) a mixture of 90 parts of isomerized linseed oil, 40 parts of PEG (molecular weight 1500), 20 parts of PC-3 and 5 parts fatty ricinic acid. Then, the resulting product is subjected to transesterification at 240 ° C together with 65 parts of fatty acid of linseed oil, 80 parts of tert-butylbenzoic acid, 90 parts of pentaerythritol, 10 parts of trimethylolpropane, 0.2 parts of lead octoate and 0.2 including calcium octoate. At 200 ° C, 100 parts of the precursor are gradually added in the form of an acrylic resin and the ester is formed in 3 hours according to a3eoTponHONry method. Immediately thereafter, 40 parts of phthalic anhydride, 30 parts of tetrahydrophthalic acid anhydride and 30 parts of hexachloro endomethylene tetrahydrofthalic acid are introduced and the formation of an ester is continuously continued at 190 ° C until reaching an acid number of 20 mg KOH / g. After distillation of the recirculating agent, the resin has the following indices: acid number 17.5 mg KOH / g and characteristic index. viscosity 10.2 ml / g. The resin, after adding 60 parts of BUGL and 16 parts of triethylamine, is emulsified with 725 g of water. This gulsy, containing 40% solids, has a pH. The preliminary product in the form of an acrylic resin is a copolymer of 70 parts of methyl methacrylate, 25 parts of styrene and 5 parts of acrylic acid, which is obtained in an environment of 100 parts of xylene with 2 parts of di-tert peroxide butyl at 135-140 ° C in the usual way. Copolymer with a 50.7% solids content has an acid value of 39.5 mg KOH / g and an intrinsic viscosity index of 14.3 ml / g. In tab. Table 2 shows the quantitative content of the initial components of the synthesis of the intermediate product — the product of the interaction of polyethylene glycol (PEG), the condensation product of phenol with formaldehyde, unsaturated carboxylic acid, and a drying oil. To prove the advantage of the proposed method, comparative examples A and B are given. Example A (comparative). In the presence of 0.2 parts of lead octoate and 0.2 parts of calcium octoate, transesterification is carried out at 240 ° C for 90 minutes of a mixture of 90 parts of tree oil, 40 parts of flaxed fatty acid, 105 hours. p-tert-butylbenzoic acid and 20 parts of the product PK-1. After the addition of 80 parts of phthalic anhydride, 20 parts of tetrahydrophthalic anhydride and 32 parts of PEG (average molecular weight 1500), they are esterified until the same final values as in example 1 are reached. The resulting emulsion is much more turbid and less viscous than in example 1, which indicates a larger particle size and, together with it, worse stability of the emulsion. Example B (comparative). The resin is obtained in a manner similar to Example A, but with 38 parts of PEG, having an acid number of 19.7 mg KOH / g and an characteristic viscosity index of 9.1 mp / g. The emulsions prepared from this resin have the same transparency properties and structural viscosity as the mulsi in Example 1. Comparative tests of the stability of emulsions prepared in Example 1 and Comparative Examples and B carried out with slow conversion at 80 ° С have the following noKa3aTt H: npHMtp 1 after 24 h: reduction of viscosity and transparency in the absence of sediment; Example A: after 7 hours, coagulum 1C1 arrived, Example B: after 7 hours and 30 minutes, coagulation occurred.
    Test with pigmented varnishes.
    From the emulsions according to examples 1-5, as well as from comparative examples A and B, lacquers are prepared having a 1: 1 ratio between the pigment and the binder. Pigmented with titanium dioxide and mixed with 3% (counting on the solids content) compatible with water, a siccative mixture containing 1.2% cobalt, 7.2 bari, 3.2% zinc, 1% sulfur, preventing the formation of a film or crust on the surface of the lacquer coating, and 0.5% of the means conducive to bottling. The lacquers are diluted with deionized water to the viscosity required for P1 name.
    Storage test; in a closed vessel at 40 ° C for 3 weeks, the change in viscosity (A), the tendency to settling (B) and the ability to regenerate (C) under certain conditions are determined.
    Dryness test: 24 hours after the manufacture of varnish, a thickness of varnish is applied to the glass strips so that the dried film is 30 µm thick and tested.
    Water resistance test: carried out after 24 hours, drying in air by holding films in water at 20 ° C for 24 hours.
    In tab. 3 shows the resultants of testing emulsions according to examples 1-5 and A, B, and films based on them. In tab. Figure 4 shows the results of testing the stability of emulsions of water-borne alkyd binder according to examples of the invention and the prototype and films based on them.
    Table 1
    - 45
    35
    -28
    22 1, 7 (5) - 2.5 (10)
    - 85 -100
    Flax oil
    Wood oil Step 3 Pentaerythritol
    Wood oil Rosin
    Tall oil
    Flaxseed oil
    Phthalic anhydride Benzoic acid Final acid number, mg KOH / G
    Viscosity characteristic index
    Emulsification:
    Butanol
    BUGL
    Deionized
    water
    Triethylamine
    Solid content
    substances%
    pH of PEG (1500) 320 22 - - 45 PEG (3000) .- 35 23200 14 - - 28 PK-1
    Continued table.
    100
    90
    thirty
    100
    80
    16.5 9.6
    95
    640 16
    45 9.1
    Table 2 16 40 25 40 25 10 Iodine number, mg g 200-210 140-150 Content of intermediate product in alkyd resin 30
    Drying
    No stickiness after h
    Strong when touched after h
    Hardness when flashed with a tandem After t week at DIM 53 1 54
    1268103
    ten
    ; Continuation of table 2,
    Table 3
    1,21,5
    8.5
    12
    45
    3859
    50 ratified ricinous 175-180125-135 170-180 170-180 P
    Continuation of table 3
    Table 4 Storage capacity: (A) viscosity: ST - decrease in viscosity J NSV - slight decrease in viscosity (B) tendency to settle; BUT - slight subsidence} CG - coagulated, in parentheses: duration of time interval in days, (B) capacity for regeneration, REG - ability to normalize after adding 0.1% triethylamine. The precipitate that is bottoming is able to stir. N. REG: not capable of regeneration. Water resistance: (A) immediately after the test: HP - slight softening; P - softening; C — strong softening (when macerated); (B) after 8 hours; REG t is regenerated, OM wrinkle formation.
    权利要求:
    Claims (1)
    [1]
    METHOD FOR PRODUCING WATER-DISPERSABLE, AIR-DRYING ALKIDE BINDERS by reacting drying oil, tetrahydric alcohol or its mixture with triatomic alcohol, polyethylene glycol, monocarboxylic acids and phthalic acid and / or their derivatives by heating 6
    11 wt.% And an acid number of 16.5 28.0 mg KOH / g, characterized in that, in order to increase stability while maintaining high physical and mechanical properties of coatings based on alkyd resins, first 1633 wt.% Polyethylene glycol of molecular weight 1500 -3000 is reacted with 10-17 wt.% Of the condensation product of formaldehyde and (Cg-Cg) -alkylphenol or a mixture of p ~ tert-butylphenol and bisphenol A with an average methylol functionality of 1.9 2.2 in the presence of 1-3 wt.% Unsaturated monocarboxylic acid at 120-140 ° C followed by condensation S of the obtained product, high drying oil with an iodine number of 125-210 mg of 1 ^ / 100 g of tetrahydric alcohol or its mixture with triatomic and phthalic acid and / or its derivatives.
    SU 1268 103 AZ
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    引用文献:
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    NL176951C|1972-08-09|1985-07-01|Bayer Ag|METHOD FOR PREPARING AQUEOUS, AIR-DRYING LACQUERS BASED ON SALTS FROM BASIC COMPOUNDS AND POLYESTER POLYURETHANHALFESTERS.|
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